The holdup happened about 9 p.m. while the taxi driver was operating a cab in the area of Newhall Street and Mill Rock Road, they said.

According to police, a customer held a knife to the driver's chest while they approached the intersection of Newhall Street and Mill Rock Road. They had been traveling from the New Haven train station.

The robber demanded money, got out of the cab and ran away, police said. He is described as 6 feet 2 tall with a medium build and "facial scruff," they said.

The driver's cuts were considered minor, police said.

Anyone with information is asked to contact Det. Donald Remillard at 203-230-4040.